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33247

尿素

Name: 尿素
Brand: SIAL

ACS reagent grade, ≥99%, solid, puriss. p.a., reag. Ph. Eur.

別名:

カルバミド, カルボニルジアミド

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この商品について

化学式:

NH₂CONH₂

CAS番号:

57-13-6

分子量:

60.06

NACRES:

NA.21

PubChem Substance ID:

57648752

UNSPSC Code:

12352100

EC Number:

200-315-5

MDL number:

MFCD00008022

Beilstein/REAXYS Number:

635724

Assay:

≥99%, 99-101% (calc. on dry substance)

Form:

solid

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特性

製品名

尿素, puriss. p.a., ACS reagent, reag. Ph. Eur., ≥99%

Quality Segment

200

agency

reag. Ph. Eur.

grade

ACS reagent, puriss. p.a.

assay

≥99%, 99-101% (calc. on dry substance)

form

solid

impurities

alkalic reac. substances, complies, ≤0.0005% heavy metals (as Pb), ≤0.05% ammonium (NH₄), ≤0.1% biuret

ign. residue

≤0.01% (as SO₄)

loss

≤1.0% loss on drying, 105°C, 1 h

mp

132-135 °C

solubility

H₂O: soluble 480 g/L at 20 °C

density

1.335 g/mL at 25 °C (lit.)

anion traces

chloride (Cl^-): ≤5 mg/kg, sulfate (SO₄^2-): ≤10 mg/kg

cation traces

Fe: ≤2 mg/kg

suitability

in accordance for appearance of solution, in accordance for identity

functional group

amine

SMILES string

NC(N)=O

InChI

1S/CH4N2O/c2-1(3)4/h(H4,2,3,4)

InChI key

XSQUKJJJFZCRTK-UHFFFAOYSA-N

Gene Information

human ... CA1(759), CA2(760)
rat ... Ppm1a(24666)

詳細

General description

Urea is a colorless, odorless solid. It has prism-like crystals. It forms insoluble nitrate salts with nitric acid and oxalate salts with oxalic acid. On reaction with alkanes or substituted alkanes, it affords crystal-lattice inclusion compounds.

Urea is the most commonly used slow release nitrogen fertilizer.

Application

Urea has been used in the following studies:

Synthesis of SnO₂ nanoparticles.
Synthesis of urethanes, ureides and semicarbazides.
Denaturation of protein isolated from Saccharomyces cerevisiae Y15696 strain.
Protein electrophoretic studies.

タンパク質の変性剤として、また不溶性タンパク質や変性タンパク質に対する穏やかな可溶化剤として用いられています。6 M塩酸グアニジンですでに変性された封入体などのサンプルからタンパク質を復元する用途に適しています。変性タンパク質を天然型または活性型にリフォールディングさせる際に、塩酸グアニジンやジチオスレイトール(DTT)とともに使用することができます。

Used for the denaturation of proteins and as a mild solubilization agent for insoluble or denatured proteins. Useful for renaturing proteins from samples already denatured with 6 M guanidine chloride such as inclusion bodies. May be used with guanidine hydrochloride and dithiothreitrol (DTT) in the refolding of denatured proteins into their native or active form.

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保管分類

11 - Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c